Two independent consultants hired to review the St. Paul Police crime lab found major errors in almost every area of the lab's work. The reports they filed following their reviews were made public Thursday.

Report: Schwarz Forensic Enterprises on controlled substance cases

Schwarz reviewed 73 controlled substance cases from the St. Paul Police Department crime lab in late 2012, according to this Jan. 14, 2013 report. The police department selected the cases that would be reviewed. The company found no evidence of contamination between cases, but it did find nine instances of potential contamination within a case. That means one piece of evidence in a case may have contaminated another piece of evidence in the same case.